There is some really good advise here, but the most critical factor here is your supervisor and how much time he/she is willing to commit to you. Remember your supervisor will have his own research to worry about plus you don't want to be extra burden on him.

During my postgraduate, I started to write my thesis as soon as my research project was launched and I had already completed my literature review. Materials & Methods, Results and Discussion came on later stages, but that thing did helped me a lot. I was lucky to have an amazing supervisor who agreed to help me through the loops. Although the universities guidelines did gave us a timeframe for submission of final thesis after the completion of the research project. It varies from course to course and university to university, mine was a British so might not be applicable here.

If you are currently working in the industry than develop a habit of publishing papers, it will help you a lot. Not only will it keep you up to date but will also help you to get into the rhythm.

As some one pointed out if your able to publish papers from your research it does help you tremendously, also now its a requirement for your Ph.D if your doing it from UM.

But in the end dont be in a hurry, it takes time and dedication to finish up postgraduates not to mention you dont want to mess up your thesis just because you wanted to finish it quickly.